33. Ultramarathon Okumusashi Quintet
33. Ultramarathon Okumusashi Quintet is a 70 km ultramarathon in Moroyama, Saitama Pref., Japan, taking place on Oct 18, 2026.
- Date
- Oct 18, 2026
- Distance
- 70 km
- Location
- Moroyama, Saitama Pref., Japan
- Format
- Fixed distance